Build a simple model that reproduces the issue - something as simple as file - new and then copy/past one element which is having the issue from the old file into the new one.
Then in the new model open Dynamo and build a graph consisting of a select model element and set parameter value node with the correct input type for the parameter.
Then post both files here, or to an open 3rd party service such as Dropbox, Google drive, onedrive, box, we transfer, etc… Just make sure a log-in isn’t required for access.
The previous node has at least one ‘null’ value in the data. Is it processing anything? Is everything null? Do you only have one null or many? Is there 1000 points but one 'null?
Don’t know - don’t have time to try, just sending messages between calls to try and help you find a solution…
Since that node isn’t returning results, you need to check the previous node to confirm that you have points there. If so, then you need to get into the ‘why’ the previous node isn’t processing anything. Start by checking if it relies on ironPython2, and if so make sure you have the right version of IronPython2 installed for your Dynamo instance. Read the package descriiption carefully to confirm.
